The absolute viscosity of the oil can be given as _____________

• A. ŋ = k{(t1D2)/(t2D1)}
• B. ŋ = k{(t1D2)+(t2D1)}
• C. ŋ = k{(t1D2)(t2D1)}
• D. ŋ = k{(t1D2)-(t2D1)}